Some ice cream packaging will be spotted and bubble, this is precisely what happened?

Summer has come the weather very hot, in the hot, dry environment, you can choose to eat ice cream or drinking a cup of cold drink. Ice cream, is very popular in the summer, every family can choose according to some ice cream at home, so I can begin to cool off. When it comes to ice cream, today small make up you and everybody talking about ice cream food packaging bags, this kind of packaging exquisite packaging to beautiful, because there is a high level of appearance can attract many consumers. But small make up found that there are a lot of ice cream packaging is not very beautiful, there will be a spotted and the phenomenon of bubble, what are the reasons for this problem? Small make up today can secretly tell everyone: 1, environmental factors, workshop environment health is not in place, such as dust and impurities, this need a clean environment; 2, workshop environment humidity is too high, the moisture in the air will adhere to the surface of raw materials, especially high hygroscopicity; 3, poor quality of membrane, the poor base membrane surface tension, leading to poor adhesive flow flat, where there is no adhesive foaming, adhesive quality problems; In the process of preparation, should as far as possible to avoid the influence of water and alcohol. 5, compound, blade Angle is big, big rubber droplets, impact of bubbles. When composite machines, high-speed operation, bubble not dissipate in time, lead to rubber plate produced a large number of bubbles, the bubbles were subsequently entrainment and transferred to the membrane, have rules spots or bubble is due to the process of preparing adhesive glue concentration is too low, due to insufficient anilox roll selection is too shallow cause adhesion dose, anilox roll blockage caused by 7, composite pressure is insufficient, the composite roll surface temperature is too low, lack of adhesive activity, liquidity is poor, make the gaps between the glue point cannot fill, tiny cracks and bubbles
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